Utility shear



March 11, 1930.

D. J. LA BAUVE 1,750,411

UTILITY SHEAR Filed May 8, 192a INVENTOR. J Za Bald :6

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A TTORNEY.

Patented Mar. 11, 1930 FFEE PATENT DUCLISE J. LA BAUVE, OF LAKE CHARLES, LOUISIANA UTILITY SHEAR Application filed May 8, 1928. Serial No. 276,084.

"This invention relates to a shearing machine and has for its primary object the de :sign of a shearing machine adaptable to materials-of different characteristics and capable 50f being very readily .moved from place to placeitoibe arranged contiguous to the material to :be operated upon. .Anobj-ect:oftheinvention is simplicity of construction-andlightness of the machine, 10 therebyenabling the production of a portable machine that may he" utilized for numerous -purpos es,.thereby.materially extending utility of the machine;

A feature of the machine -is the novel ar- 1 rangement of the table and rollen devicesirela- *tix e tothecutting bladesvso that the material ma -be properlysupport'edduring the cutting operation and the l cut material readily conlveyed irom the inachine? 7 A gui shed in the simplified;designf of th'e'bompo- "-;nent-'-partsan d -motie of assembly so asto n aterially reduce the production cost ofthemachine "gte mat'erial'ly wi'den the s ales possibilities: f 1 Iii; 4

'=With' these=and other objects in view, this inventionwill be'better understood from the f oliowing detailed description taken in connection i' with the {accompanying drawing,

- E te ies me e. part qe rl o t details o i 1 the articular of invention .1 1 s ra ed '"ieiit ia w d Paflb ihearih 3 li attyil th whe Q -faQ 1 tat net1 at rr,

l h I legs depending upon which is most advantageous to practice.

The frame of this portable carriage 2 as herein shown consists of a rectangular bar 21 which is preferably made from metal in order 55 that the frame at all times will have a rigid construction. Secured t the forward end of this bar 21 by means of the bolts 22is the bearing or support 3 whereas the rearsupport 5 is secured -to the rear end of this bar by means go ot the bolts23. The forward end of the bar21 isprovided with a stop or check 9 which latter .is formed by bending the extremity of the forward end of the bar at right angles thereto as is better illustrated in Figure 2- of thedraw- .65

ings. A lever 10 which supportsthe movable -.hla de7 is i also formed from a ,rectangularly shaped met-al bar having itsiorward end oftset as shown and is pivotally connected inia rigid manner by means of the bolt"8,- to the 70 forward end of the stationary bar 21. This .leveror bar lOis provided with a handle 11 ,by. which the movable blade may be manipulated.

A projection 24 isttormed with the bar 10 and extendsbeyond the;pi vot;point pro vided by the bolt 8 whereby this-projection 24: ,will contact withthe under sideof the check or stop 9 in order to check the'lower lever after each shearing operation, so that the upper lever will not have a tendency to so spring away from the lower-lever and enable the working parts to get-out of, line. Secured :to one sideof this bar 21 by meansof, the bolts 22, 23 and 25 is astationary blade Gand a similar blade .is also detachably secured by means of the bolt 26 to the bar 10. .Herein, it .will be noted that these cutting blades 6 and 7 are relatively long and have a particular bevel thereon leading to the. cutting edges thereof whereby these cutting bladesmay be utilizedfor the cutting of heavyorlight ,niatcrial as conditions may dictate. vThese blades-fiand 7 are identical in construction and mayhemo. ,terchanged so that a cutting blade of the. same 0 1 t m y be upon the s at nar 3 "bar 21 Iorthel novable bar 1 0.

Bolted to the carriage orframe2 shelf e -Fab e 2 r a eda part cula re atio ith the u tin blades,- s that the mat ti base seate e em may 5 99- uepvrt e. a th the component parts of the machine and the portability thereof enables the machine to be' utilized to cut sheets of various materials and may be used in the field for cutting grain, or other forms of vegetation.

I have found from actual experience that it is of material advantage to provide supporting means for supporting the material after being cut and to facilitatethe removal of the material from the machine.

To accomplish this desired result I have illustrated a plurality of brackets'13 bolted to Y the frame 2 atpredetermined points contiguous to the cutting blades so as to support the roller devicesnow to be described. These roller devices, as illustrated, consist of rods" "14 directlysecured to the brackets and supporting roller sleeves 15 that directly receive the cut material; These roller sleeves are detachably held in place by nuts 16 threaded on the ends'of the rods and having abutting; relation with the ends ofthe sleeves. To fa-.

' cilitate theengagement of the material with material under various conditions.

the roller sleeves according to the width of the material cut I have illustrated adjustable stops 17 mounted on the sleeves and illustrated in this particular case as collars 18 having hubs 19 adjustably secured to the sleeves by the set screws 20.

From the foregoing description, taken in connection with the accompanying drawing, it will be apparent that I have designed a machine of relatively few parts of simple design and connected together in a novel manner to produce a relatively light portable machine capable of cutting various types of It will also be appreciated that the connection of the component parts of the machine simplifies assemblage operations and besides enables a part to be readily renewed should the occasion arise.

Particular attention is called to the fact that a bend is formed at the point of junction of the two blades to properly align the blades for assuring a clean positive cut of material of diiferent characteristics.

It is further apparent from the foregoing that I have provided a portable shearing machine which may be utilized for cutting light or heavy materials in a practical and efiicient manner and that the rigid construction herein afforded is such that the blades will retain their alinement and perform a clean cut regardless of the material to be severed and furthermore, owing to thearrangement of the cutting blades, the material may be easily passed between the cutting aws and will drop freely from the machine after each cutting operation. It will also be noted that when the cutting blades are open or the position as is illustrated in Figure 1 of the drawings, that they will allow the material of any length to be inserted freely betweenthe jaws of the machine and the material can then be held by the left hand and the handle operated by the right hand so that the machine may be continuously operated without the operator being required to change his position.

It will of coursebe understood that the design and mode of connection of the component parts may be changed in various other manners than" illustrated and the machine may be operated manuallyor mechanically through the use of an electric motor or other power devices. It will also be understood that the cutting structures may be associated with a stationary frame in. lieu ofthe movable frame as illustrated in the drawing. Therefore, I do not desire to fbe-limited in protection in any manner. whatsoever, except as set forth in the following claimsi lVhatI'claimisz'}. i i

1. A shearing machine" comprising a stationary blade carrying bar, a :movable blade carrying barpivoted at one end to the stationarybar, .means at the pivoted end portions of said bars for limiting the movement of said movable bar,-a work supporting table fixed to the stationary bar at-one side thereof, and workreceiving'members extending from the opposite side of said bar.

2. A shearing machine comprising a stationary blade carrying bar, a movable blade carrying bar pivoted at one end to the, stationary bar, means at the pivoted endportions of said bars for limiting the movement of said movable bar, a work supporting table fixed to the stationary bar at one side thereof, work receiving rollersextending from the opposite side of said bar, and a'carriage supporting said bars table and rollers.

3. A shearing machine comprising a stationary bar having a lateral projection formed at one end thereof, a wheel support carried by said mentioned end of said stationary bar, supporting legs secured to the opposite end of said bar, a cutting blade attached to said bar, a movable bar pivoted at one end to the stationary bar, the pivoted end of said movable bar having an extension adapted to engage the lateral projection of the stationary bar to limit the movement of said movable bar, and a second cutting blade carried by the movable bar and cooperating with the cutting blade of the stationary bar.

t. A shearing machine comprising a stationary bar, wheels supporting one end of said stationary bar, legs supportf mg the op'posleeves.

DUCLISE J. LA BAUVE. 

